Mozilla Thurnderbird 10.0 has been released, the new release comes with some imrovements and bug fix. This new version of Thunderbird come with the following changes, New ability to search the Web, Improvements to email search, Several fixes when drafting email and several other platform fixes.
If you are an Ubuntu or LinuxMint user, you can install Thunderbird 10 using the following PPA.
sudo add-apt-repository ppa:mozillateam/thunderbird-stable sudo apt-get update sudo apt-get install thunderbird
For other Linux distributions, please download from the following link